Bosch Rexroth A6VM variable hydraulic motor for the Baumann sideloader 110681 112407 96718

The A6VM is a bent-axis, swash-free axial piston motor from Bosch Rexroth, designed for hydrostatic transmissions in open and closed circuits. Instead of a swashplate, the cylinder block sits at an angle to the drive shaft. Changing that angle changes the displacement per revolution.

Why a Variable Motor Suits a Sideloader Drive

Two very different duty cycles in one shift

A sideloader alternates between slow, heavy work and faster repositioning:

1. Loading and unloading at the rack: slow, precise, high torque

2. Loaded travel through the yard: moderate speed, steady torque

3. Empty return or long transfers: higher speed, low torque demand

A variable motor shifts displacement to match, so the operator gets smooth acceleration and usable top speed without a mechanical gearbox doing all the work.

Traction and gradient performance

Yards are rarely perfectly flat. Ramps, loading docks, and uneven gravel put real demands on drive torque. Maximum displacement gives the machine the grunt to start on a slope with a heavy pack, while the motor's control keeps engine load in check.

Packaging

Sideloaders carry the load in a central channel between the axles, so chassis space is tight. A compact bent-axis motor that mounts to a gearbox or axle with a standard flange helps engineers keep the layout clean.

Specifying or Replacing an A6VM: What to Match

Getting the designation right avoids expensive mistakes. Read the full type code on the nameplate and confirm:

- Frame size and displacement (maximum and minimum)

- Series (a later series may not be a drop-in for an earlier one)

- Control type and control voltage or pilot pressure range

- Mounting flange and pilot diameter

- Shaft type (splined or keyed, spline standard)

- Port configuration (SAE flange, threaded, or side/rear ports)

- Integrated valves such as brake or flushing valves

- Speed sensor preparation, if the controller uses it

- Direction of rotation and seal material

Maintenance Practices That Extend Motor Life

Keep the oil clean

Contamination is the leading killer of axial piston hydraulics. Aim for the fluid cleanliness class your machine's manual specifies (commonly expressed as an ISO 4406 code), replace filters on schedule, and use clean fill and breathers.

Watch temperature

Sustained high oil temperature accelerates seal ageing and reduces lubricating film strength. Keep coolers clear and monitor reservoir temperature.

Use the right fluid

Use the mineral or approved hydraulic fluid specified for your system, at the correct viscosity for your climate. Mixing incompatible fluids can damage seals.

Monitor case drain flow

Rising case drain flow is an early warning of internal wear. Measuring it during routine service catches problems before a failure.

Start-up discipline

Cold starts with thick oil stress the rotating group. Allow warm-up before heavy loads, especially in winter.

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Q1: Is the A6VM used on every Baumann sideloader?

A1: Not necessarily. Baumann's drive configuration differs by model and generation. Verify the exact motor from the nameplate or parts documentation rather than assuming.

Q2: Can I repair an A6VM instead of replacing it?

A2: Often yes. Seals, bearings, and some rotating group components can be serviced by a qualified hydraulic workshop. Severe scoring or housing damage usually makes exchange or remanufacture more economical.

Q3:What is the price and delivery time of the Rexroth A6VM motor for the Baumann sideloader?

A3: The specific price and delivery time will depend on the equipment model or specific product model you provide.

Q4: How to purchase a Rexroth A6VM motor for the Baumann sideloader?

A4:You can visit https://www.baolilaihydraulic.com/contact/ to contact us and purchase our products through various methods.